Home / 199,943.65-299,423.40-133,021.45

Finding the Fourth Proportional to 199,943.65, 299,423.40 and 133,021.45

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Solution

The fourth proportional to 199,943.65, 299,423.40 and 133,021.45 is: 199,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,943.65 : 299,423.40 = 133,021.45 : x
  2. Step 2: Convert to fraction form
    199,943.65/299,423.40 = 133,021.45/x
  3. Step 3: Cross multiply
    199,943.65x = 299,423.40 × 133,021.45
  4. Step 4: Simplify right side
    199,943.65x = 39,829,734,831.93
  5. Step 5: Solve for x
    x = 39,829,734,831.93/199,943.65
  6. Step 6: Final answer
    x = 199,204.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.